public void GetBytes()
        {
            var request = new SftpFSetStatRequest(_protocolVersion, _requestId, _handle, _attributes, null);

            var bytes = request.GetBytes();

            var expectedBytesLength = 0;
            expectedBytesLength += 4; // Length
            expectedBytesLength += 1; // Type
            expectedBytesLength += 4; // RequestId
            expectedBytesLength += 4; // Handle length
            expectedBytesLength += _handle.Length; // Handle
            expectedBytesLength += _attributesBytes.Length; // Attributes

            Assert.AreEqual(expectedBytesLength, bytes.Length);

            var sshDataStream = new SshDataStream(bytes);

            Assert.AreEqual((uint) bytes.Length - 4, sshDataStream.ReadUInt32());
            Assert.AreEqual((byte) SftpMessageTypes.FSetStat, sshDataStream.ReadByte());
            Assert.AreEqual(_requestId, sshDataStream.ReadUInt32());

            Assert.AreEqual((uint) _handle.Length, sshDataStream.ReadUInt32());
            var actualHandle = new byte[_handle.Length];
            sshDataStream.Read(actualHandle, 0, actualHandle.Length);
            Assert.IsTrue(_handle.SequenceEqual(actualHandle));

            var actualAttributes = new byte[_attributesBytes.Length];
            sshDataStream.Read(actualAttributes, 0, actualAttributes.Length);
            Assert.IsTrue(_attributesBytes.SequenceEqual(actualAttributes));

            Assert.IsTrue(sshDataStream.IsEndOfData);
        }